CN104079391A - Method and system of transmitting data packet as well as communication equipment - Google Patents

Abstract

The embodiment of the invention discloses a data packet transmission method, system and communication equipment, which are applied in the technical field of communication. In the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through the communication device of the first wireless communication technology, if the transmission of the first data packet satisfies the preset When the policy is selected, the communication device of the first wireless communication technology will forward the first data packet to the communication device of the second wireless communication technology to instruct to transmit the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

Description

A data packet transmission method, system and communication device

technical field

The invention relates to the technical field of communication, in particular to a data packet transmission method, system and communication equipment.

Background technique

With the growth of demand for wireless communication services, more and more wireless communication technologies have entered or are entering the practical stage, for example, Global System for Mobile Communications (Global System for Mobilecommunications, GSM)/General Packet Radio Service System (General Packet Radio) System, GPRS), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE) system, and Wireless Local Area Network (WLAN).

In the prior art, after the sender and the receiver establish a data connection channel, they generally use a wireless communication technology to perform data transmission. Specifically, after the sender transmits the current data packet, when receiving the acknowledgment returned by the receiver ( Acknowledgment) message, the sender will transmit the next data packet; when the sender does not receive an acknowledgment message, or receives a negative acknowledgment (NegativeAcknowlegement, NACK), the sender will initiate an automatic repeat request (Automatic Repeatrequest, ARQ), will retransmit Packet before transmission. This can ensure the transmission of the data packets between the communication parties, but if the transmission of the data packets is due to the transmission error caused by various factors in the wireless communication technology system, the existing transmission mode is adopted, and the repetition of the data packets There will also be errors.

Contents of the invention

Embodiments of the present invention provide a data packet transmission method, system, and communication equipment to ensure the transmission of data packets.

The first aspect of the embodiments of the present invention provides a data packet transmission method, which is applied to a communication device of the first wireless communication technology, including:

receiving the first data packet sent by the sending end;

determining whether the transmission of the first data packet satisfies a preset strategy, and if so, forwarding the first data packet to a communication device of a second wireless communication technology to instruct the communication device of the second wireless communication technology transmitting the first data packet to a receiving end;

The preset strategy includes any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, and the load of the communication device of the first wireless communication technology exceeds a preset load value , the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet.

In the first possible implementation manner of the first aspect of the embodiment of the present invention, after receiving the first data packet sent by the sending end, before forwarding the first data packet to the communication device of the second wireless communication technology ,Also includes:

adding a sequence number to the first data packet, where the sequence number is used to identify a sequence relationship between the first data packet and other data packets;

Then, the forwarding the first data packet to the communication device of the second wireless communication technology specifically includes: forwarding the first data packet with the sequence number added to the communication device of the second wireless communication technology to indicate that the The communication device of the second wireless communication technology transmits the first data packet with the sequence number increased to the receiving end.

In combination with the first possible implementation of the first aspect of the embodiments of the present invention, in the second possible implementation of the first aspect of the embodiments of the present invention, adding a sequence number to the first data packet specifically includes:

Associating the first data packet with the sequence number to form a first data packet with an increased sequence number; or,

The first data packet is segmented, and the sequence number is added to a certain sub-segment of the first data packet.

In combination with any method in the first aspect to the second possible implementation manner of the first aspect of the embodiment of the present invention, in the third possible implementation manner of the first aspect of the embodiment of the present invention, the forwarding of the first data packet Before the communication device for the second wireless communication technology, it also includes:

judging whether the communication device of the second wireless communication technology is available, and if available, performing the step of forwarding; and/or,

Judging whether the data packets buffered by the communication device of the second wireless communication technology associated with the communication device of the first wireless communication technology exceed a preset value, and if not, perform the step of forwarding.

In combination with any method of the first aspect to the third possible implementation manner of the first aspect of the embodiment of the present invention, in the fourth possible implementation manner of the first aspect of the embodiment of the present invention:

The communication device of the first wireless communication technology is a base station of any of the following standards: the long-term evolution LTE standard, the wide area mobile communication system UMTS standard and the global system for mobile communication GSM standard; the communication device of the second wireless communication technology is a wireless A wireless access point AP in a LAN; or,

The communication device of the first wireless communication technology is a wireless access point AP in the wireless local area network, and the communication device of the second wireless communication technology is a base station of any of the following standards: long-term evolution LTE standard, wide area mobile communication system UMTS standard and the Global System for Mobile Communications GSM standard.

The second aspect of the embodiment of the present invention provides a data packet transmission method, which is applied to a communication device of the second wireless communication technology, including:

Receiving a first data packet of the sender sent by a communication device of the first wireless communication technology; the first data packet is determined by the communication device of the first wireless communication technology to satisfy a preset strategy for the transmission of the first data packet sent when

transmitting the first data packet to a receiving end;

The preset strategy includes any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, and the load of the communication device of the first wireless communication technology exceeds a preset load value , the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet.

In the first possible implementation manner of the second aspect of the embodiments of the present invention, the receiving the first data packet of the sending end sent by the communication device of the first wireless communication technology specifically includes:

receiving a first data packet with an increased sequence number sent by a communication device of the first wireless communication technology, where the sequence number is used to identify a sequence relationship between the first data packet and other data packets;

Then, transmitting the first data packet to the receiving end specifically includes: transmitting the first data packet after adding the sequence number to the receiving end.

With reference to the second aspect of the embodiment of the present invention or the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect of the embodiment of the present invention, the method further includes:

If the sending end does not return an acknowledgment message for the first data packet, retransmit the first data packet to the sending end;

If the number of times of retransmitting the first data packet exceeds a preset value, notify the communication device of the first wireless communication technology to initiate retransmission of the first data packet.

In combination with any method of the second aspect to the second possible implementation manner of the second aspect of the embodiment of the present invention, in the third possible implementation manner of the second aspect of the embodiment of the present invention:

The communication device of the first wireless communication technology is a base station of any of the following standards: the long-term evolution LTE standard, the wide area mobile communication system UMTS standard and the global system for mobile communication GSM standard; the communication device of the second wireless communication technology is a wireless A wireless access point AP in a LAN; or,

The communication device of the first wireless communication technology is a wireless access point AP in the wireless local area network, and the communication device of the second wireless communication technology is a base station of any of the following standards: long-term evolution LTE standard, wide area mobile communication system UMTS standard and the Global System for Mobile Communications GSM standard.

The third aspect of the embodiment of the present invention provides a data packet transmission method, which is applied to a communication device supporting the first wireless communication technology and the second wireless communication technology, including:

receiving the first data packet sent by the sending end;

Determine whether the transmission of the first data packet through the first wireless communication technology satisfies a preset strategy, and if so, transmit the first data packet to the receiving end through the second wireless communication technology;

The preset strategy includes any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, the load of the communication device transmitting data through the first wireless communication technology exceeds the preset For a load value, the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet.

In the first possible implementation manner of the third aspect of the embodiments of the present invention, after receiving the first data packet sent by the sending end, further include:

adding a sequence number to the first data packet, where the sequence number is used to identify a sequence relationship between the first data packet and other data packets;

Then, the transmitting the first data packet to the receiving end through the second wireless communication technology specifically includes: transmitting the first data packet after adding the sequence number to the receiving end.

In combination with the first possible implementation of the third aspect of the embodiment of the present invention, in the second implementation of the third aspect of the embodiment of the present invention, adding a sequence number to the first data packet specifically includes:

Associating the first data packet with the sequence number to form a first data packet with an increased sequence number; or,

The first data packet is segmented, and the sequence number is added to a certain sub-segment of the first data packet.

In combination with any method of the third aspect to the second possible implementation manner of the third aspect of the embodiment of the present invention, in the third possible implementation manner of the third aspect of the embodiment of the present invention:

The communication device is a base station of any of the following standards with the wireless access point AP function in the wireless local area network: the long-term evolution LTE standard, the wide area mobile communication system UMTS standard and the global system for mobile communication GSM standard; or,

The communication device is a wireless access point AP in a wireless local area network with a base station function of any of the following standards: long-term evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communication GSM standard.

A fourth aspect of the embodiments of the present invention provides a communication device, where the communication device supports a first wireless communication technology, including:

a data packet receiving unit, configured to receive the first data packet sent by the sending end;

A transmission determining unit, configured to determine whether the transmission of the first data packet received by the data packet receiving unit satisfies a preset policy; the preset policy includes any one or more of the following information: via the first wireless communication technology For the transmission error of the first data packet, the load of the communication device exceeds a preset load value, and the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet;

a transmission forwarding unit, configured to forward the first data packet to a communication device of the second wireless communication technology when the transmission determination unit determines that the transmission of the first data packet satisfies a preset policy, so as to indicate the The communication device of the second wireless communication technology transmits the first data packet to the receiving end.

In the first possible implementation manner of the fourth aspect of the embodiments of the present invention, the communication device further includes:

A sequence number adding unit, configured to add a sequence number to the first data packet received by the data packet receiving unit, where the sequence number is used to identify the sequence relationship between the first data packet and other data packets;

Then the transmission and forwarding unit is specifically configured to forward the first data packet after the sequence number is increased by the sequence number increasing unit to the communication device of the second wireless communication technology, so as to indicate the communication of the second wireless communication technology The device transmits the first data packet with the sequence number incremented to the receiving end.

With reference to the first possible implementation manner of the fourth aspect of the embodiment of the present invention, in the second possible implementation manner of the fourth aspect of the embodiment of the present invention, the sequence number increasing unit specifically includes: for combining the first data packet with After the sequence numbers are associated, a first data packet with an added sequence number is formed; or, the first data packet is segmented, and the sequence number is added to a certain sub-segment of the first data packet.

In combination with any method of the fourth aspect to the second possible implementation manner of the fourth aspect of the embodiments of the present invention, in the third possible implementation manner of the fourth aspect of the embodiments of the present invention, the communication device further includes:

A pre-forwarding judging unit, configured to judge whether the communication device of the second wireless communication technology is available, and if available, notify the transmission and forwarding unit to perform the forwarding step; or,

The pre-forwarding judging unit is configured to judge whether the data packets buffered by the communication device of the second wireless communication technology associated with the communication device exceed a preset value, and if not, notify the transmission and forwarding unit to perform the forwarding A step of.

A communication device provided by a fifth aspect of an embodiment of the present invention, where the communication device supports a second wireless communication technology, including:

The forwarding and receiving unit is configured to receive the first data packet of the sending end sent by the communication device of the first wireless communication technology; the first data packet is determined by the communication device of the first wireless communication technology for the first data packet Sent when the transmission meets the preset policy;

a transmission unit, configured to transmit the first data packet received by the forwarding and receiving unit to the receiving end;

The preset strategy includes any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, and the load of the communication device of the first wireless communication technology exceeds a preset load value , the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet.

In the first possible implementation manner of the fifth aspect of the embodiment of the present invention:

The forwarding and receiving unit is specifically configured to receive the first data packet sent by the communication device of the first wireless communication technology after adding the sequence number, and the sequence number is used to identify the relationship between the first data packet and other data packets sequence relationship;

The transmission unit is specifically configured to transmit the first data packet after adding the sequence number to the receiving end.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect of the embodiment of the present invention, in the second possible implementation manner of the fifth aspect of the embodiment of the present invention, the communication device further includes:

a retransmission unit, configured to retransmit the first data packet to the sending end if the sending end does not return an acknowledgment message for the first data packet;

A retransmission notification unit, configured to notify the communication device of the first wireless communication technology to initiate retransmission of the first data packet if the number of times the retransmission unit retransmits the first data packet exceeds a preset value pass.

The sixth aspect of the embodiment of the present invention provides a communication device that supports the first wireless communication technology and the second wireless communication technology, including:

a sending and receiving unit, configured to receive the first data packet sent by the sending end;

A policy determining unit, configured to determine whether the transmission of the first data packet received by the transmitting and receiving unit through the first wireless communication technology satisfies a preset policy; the preset policy includes any one or more of the following information: The transmission error of the first data packet by the first wireless communication technology, the data transmission load of the communication device through the first wireless communication technology exceeds a preset load value, and the data packet transmission quality of the first wireless communication technology is not good. meeting the transmission quality of the first data packet;

A data transmission unit, configured to transmit the first data packet through a second wireless communication technology when the policy determination unit determines that the transmission of the first data packet through the first wireless communication technology satisfies a preset policy to the receiving end.

In the first possible implementation manner of the sixth aspect of the embodiment of the present invention, the communication device further includes:

A sequence number adding unit, configured to add a sequence number to the first data packet received by the sending and receiving unit, the sequence number being used to identify the sequence relationship between the first data packet and other data packets;

Then the data transmission unit is specifically configured to transmit the first data packet after adding the sequence number to the receiving end.

With reference to the first possible implementation manner of the sixth aspect of the embodiment of the present invention, in the second possible implementation manner of the sixth aspect of the embodiment of the present invention, the sequence number increasing unit is specifically configured to combine the first data packet with the After correlating the sequence numbers, the first data packet with the sequence number added is formed; or, the first data packet is segmented, and the sequence number is added to a certain sub-segment of the first data packet.

The seventh aspect of the embodiment of the present invention provides a data packet transmission system, including a communication device of the first wireless communication technology and a communication device of the second wireless communication technology;

The communication device of the first wireless communication technology is the communication device described in any one of the third possible implementation manners of the fourth aspect to the fourth aspect of the embodiment of the present invention, and the communication device of the second wireless communication technology is The communication device according to any one of the second possible implementation manners of the fifth aspect to the fifth aspect of the embodiments of the present invention.

The eighth aspect of the embodiment of the present invention provides a data packet transmission system, including any one of the second possible implementation manners of the sixth aspect to the sixth aspect of the embodiment of the present invention, which supports communication of multiple wireless communication technologies.

In the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through the communication device of the first wireless communication technology, if the transmission of the first data packet satisfies the preset When the policy is selected, the communication device of the first wireless communication technology will forward the first data packet to the communication device of the second wireless communication technology to instruct to transmit the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

In another implementation, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through a communication device supporting multiple wireless communication technologies, if the first wireless communication technology is used to When the transmission of the first data packet satisfies the preset strategy, the communication device will transmit the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is transmitted through another wireless communication technology, which makes full use of network resources and ensures the transmission of the data packet.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a network system under the fusion of multiple wireless communication technologies in an embodiment of the present invention;

FIG. 2 is a flow chart of a data packet transmission method provided by Embodiment 1 of the present invention;

FIG. 3 is a flowchart of another data packet transmission method provided by Embodiment 1 of the present invention;

FIG. 4 is a flowchart of a data packet transmission method provided by Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of another network system under the fusion of multiple wireless communication technologies in the embodiment of the present invention;

FIG. 6 is a flowchart of a data packet transmission method provided by Embodiment 3 of the present invention;

FIG. 7 is a flowchart of another data packet transmission method provided by Embodiment 3 of the present invention;

FIG. 8 is a flow chart of a data packet transmission method provided by Embodiment 4 of the present invention;

FIG. 9 is a flow chart of a data packet transmission method provided in Embodiment 5 of the present invention;

FIG. 10 is a flowchart of a data packet transmission method provided in Embodiment 6 of the present invention;

FIG. 11 is a schematic structural diagram of a communication device supporting a first wireless communication technology provided by an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of another communication device supporting the first wireless communication technology provided by an embodiment of the present invention;

Fig. 13 is a schematic structural diagram of another communication device supporting the first wireless communication technology provided by an embodiment of the present invention;

Fig. 14 is a schematic structural diagram of a communication device supporting a second wireless communication technology provided by an embodiment of the present invention;

Fig. 15 is a schematic structural diagram of another communication device supporting a second wireless communication technology provided by an embodiment of the present invention;

Fig. 16 is a schematic structural diagram of a communication device supporting the first wireless communication technology and the second wireless communication technology provided by an embodiment of the present invention;

Fig. 17 is a schematic structural diagram of another communication device supporting the first wireless communication technology and the second wireless communication technology provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

First of all, it should be noted that the communication device of a certain wireless communication technology mentioned in the following documents may be any network-side device that passes through during the data packet communication between the sending end and the receiving end.

Embodiment 1 of the present invention

A data packet transmission method is provided, which is mainly used for the transmission of data packets in a network system under the fusion of multiple wireless communication technologies (taking two wireless communication technologies as an example) as shown in Figure 1. In the network system, The communication terminal can transmit data packets through any wireless communication technology, and there is an interface for mutual communication between communication devices of the two wireless communication technologies. For example, the communication device of the first wireless communication technology can be a base station of any of the following standards: LTE standard, UMTS standard and GSM standard, etc., and the communication device of the second wireless communication technology can be a wireless access point (Access Point) in the WLAN network , AP); or, the communication device of the first wireless communication technology may be a wireless AP in the WLAN network, and the communication device of the second wireless communication technology is a base station of any of the following standards: LTE standard, UMTS standard and GSM standard. There is an interface for mutual communication between the base station and the wireless AP. The wireless AP may be a terminal device as a wireless communication hotspot.

In the method of this embodiment, during the process of transmitting data packets using the first wireless communication technology between communication terminals (including the following sending end and receiving end), when the data packets pass through the communication equipment of the first wireless communication technology, the The method performed by the communication device of the first wireless communication technology, as shown in Figure 2, includes:

Step 100, receiving the first data packet sent by the sender.

Step 101, determine whether the transmission of the first data packet received in step 100 satisfies a preset policy, if yes, execute step 102, and if not, execute step 103.

The preset policy here may include, but is not limited to, any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, in this case, when the communication device of the first wireless communication technology receives the transmission After the first data packet sent by the end, the first data packet is transmitted to the receiving end through the first wireless communication technology, if the confirmation message returned by the receiving end is not received, the transmission of the first data packet is wrong; the first The load of the communication device of the wireless communication technology exceeds a preset load value; the transmission quality of the data packet of the first wireless communication technology does not meet the transmission quality of the first data packet. Under the latter two strategies, when the communication device of the first wireless communication technology receives the first data packet sent by the sending end, it does not immediately transmit the first data packet to the receiving end, but first judges that the first data packet is currently passed through the first wireless communication. Whether the load of the technology transmission data packet exceeds a certain load value, or whether the transmission quality of the data packet meets the transmission quality of the first data packet.

Step 102: Forward the first data packet to the communication device of the second wireless communication technology, so as to instruct the communication device of the second wireless communication technology to transmit the first data packet to the receiving end through the second wireless communication technology.

In order not to waste the transmission resources between the two communication devices, before performing this step, the communication device of the first wireless communication technology may first judge whether the first data packet can be transmitted by the second wireless communication technology, and if it is available, it will execute The steps to forward. Specifically, the communication device of the first wireless communication technology may determine whether the communication device of the second wireless communication technology is available, and if available, it indicates that the first data packet can be transmitted by the second wireless communication technology. The communication device of the first wireless communication technology may also determine whether the data packets cached on the communication device of the second wireless communication technology associated with the communication device of the first wireless communication technology exceed a preset value, and if not, it indicates that the second wireless communication technology is available. The second wireless communication technology transmits the first data packet.

Step 103, the communication device of the first wireless communication technology transmits the first data packet to the receiving end through the first wireless communication technology.

It can be seen that in the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through the communication device of the first wireless communication technology, if the transmission of the first data packet satisfies When the policy is preset, the communication device of the first wireless communication technology will forward the first data packet to the communication device of the second wireless communication technology to instruct to transmit the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

In a specific embodiment, after the communication device of the first wireless communication technology performs the above step 102, when the receiving end receives the first data packet, it may return an acknowledgment message for the first data packet, and the first The communication device of the wireless communication technology needs to wait for the confirmation message for the first data packet returned by the receiving end through the communication device of the second wireless communication technology before transmitting the next data packet sent by the sending end (that is, the second data packet ), specifically, the second data packet can be transmitted according to the above steps 100 to 103, then the second data packet can be transmitted to the receiving end through the first wireless communication technology, or the second data packet can be transmitted through the second wireless communication technology The communication device transmits to the receiving end. If the communication device of the second wireless communication technology does not receive the confirmation message returned by the receiving end, the communication device of the second wireless communication technology may retransmit the first data packet until the transmission of the first data packet is correct. In this case, when transmitting data packets, it is necessary to confirm that a data packet is correctly transmitted before transmitting the next data packet.

Referring to FIG. 3, in another specific embodiment, after the communication device of the first wireless communication technology performs the above step 100, it also needs to perform step 104, that is, when the communication device of the first wireless communication technology receives the After the first data packet is sent, a sequence number is added to the first data packet, where the sequence number is used to identify the sequence relationship between the first data packet and other data packets. Then, when the communication device of the first wireless communication technology executes step 102, it transmits the first data packet with the increased serial number to the communication device of the second wireless communication technology, so as to indicate that the communication device of the second wireless communication technology will increase the serial number The first data packet is transmitted to the receiving end. When adding a serial number to the first data packet, the communication device of the first wireless communication technology may associate the first data packet with the serial number to form the first data packet with the serial number added; or segment the first data packet first, and A sequence number is added to a certain sub-segment of the first data packet.

In this way, since each data packet transmitted to the receiving end carries the sequence relationship between the data packet and other data packets, the sending end can transmit the data packets out of order, and the receiving end can reassemble according to the sequence number corresponding to each data packet correct sequence of data packets, after performing the above step 102, the communication device of the first wireless communication technology may not need to wait for the first data packet to be transmitted correctly, that is, the communication device of the first wireless communication technology does not need to wait for the receipt of the first data packet A confirmation message of a data packet can transmit another data packet (i.e. the second data packet), and the transmission of the second data packet can be transmitted according to steps 100 to 104 in Fig. 3, and for the first data packet and the second data packet The transmission of the two data packets is performed simultaneously or sequentially, which can speed up the data transmission rate.

In this embodiment, when the sending end sends the data packet to the receiving end, when the data packet passes through the communication device of the first wireless communication technology, the communication device adds a serial number to the first data packet. In another specific embodiment Among them, the sending end can also directly send the data packet with the serial number added, so that the communication device can directly forward the data packet.

It should be noted that there is no absolute sequence relationship between steps 104 and 101 in this embodiment, and they can be executed simultaneously or sequentially. The execution of step 104 before step 101 shown in FIG. 3 is only one specific example. In an embodiment, in this way, if it is determined in step 101 that the transmission of the first data packet does not meet the preset policy, the communication device of the second wireless communication technology may pass the first data packet with the increased sequence number through the The first wireless communication technology is transmitted to the receiving end.

Embodiment 2 of the present invention

A data packet transmission method is provided, which is mainly used for the transmission of data packets in a network system under the fusion of multiple wireless communication technologies (taking two wireless communication technologies as an example) as shown in Figure 1. The method of this embodiment is The method executed by the communication device of the second wireless communication technology, the flow chart of which is shown in Figure 4, includes:

Step 201, receiving a first data packet from a sender sent by a communication device of a first wireless communication technology, wherein the first data packet is when the communication device of the first wireless communication technology determines that the transmission of the first data packet satisfies a preset policy The sent and preset policies include, but are not limited to, any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, the load of the communication device of the first wireless communication technology exceeds the preset load value, the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet, etc.

It can be understood that when a data packet (such as a first data packet) is transmitted between the sending end and the receiving end, when the first data packet passes through the communication device of the first wireless communication technology, according to the method described in the first embodiment above, it can be connected with The communication interface between the communication devices of the second wireless communication technology transmits the first data packet to the communication device of the second wireless communication technology.

Step 202, transmit the first data packet to the receiving end through the second wireless communication technology.

It can be seen that in the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, the communication device of the second wireless communication technology will receive the first data packet sent by the communication device of the first wireless communication technology, The first data packet is sent when the communication device of the first wireless communication technology determines that the transmission of the first data packet satisfies a preset policy, so that the second wireless communication technology transmits the first data packet to the receiving end. In this way, when the first data packet cannot be transmitted by one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

In a specific embodiment, after the communication device of the second wireless communication technology executes the above step 202, when the receiving end receives the first data packet, it may return an acknowledgment message for the first data packet, and the second The communication device of the wireless communication technology will send the confirmation message to the communication device of the first wireless communication technology to indicate that the next data packet, that is, the second data packet, can be transmitted, and the communication device of the second wireless communication technology waits to receive the second wireless communication The second data packet sent by the communication device of the technology.

However, if the sending end does not return an acknowledgment message to the first data packet, the communication device of the second wireless communication technology will retransmit the first data packet to the sending end. When the number of retransmissions of the first data packet exceeds the preset value (such as 12 times), the communication device of the second wireless communication technology needs to notify the communication device of the first wireless communication technology to initiate retransmission of the first data packet, and will not transmit the second data packet until the transmission of the first data packet is correct. Two packets.

It can be seen that in this embodiment, when transmitting data packets, it is necessary to confirm that a data packet is correctly transmitted before transmitting the next data packet, so that the receiving end can know the sequence of the data packets sent by the sending end.

Further, in another specific embodiment, the communication device of the first wireless communication technology will add a sequence number to the first data packet, and the sequence number can indicate the sequence relationship between the first data packet and other data packets. In this case Next, when the communication device of the second wireless communication technology executes the above step 201, it receives the first data packet with the increased sequence number, and when the above step 202 is executed, it can transmit the first data packet with the increased sequence number to the receiving end .

In this way, since each data packet transmitted to the receiving end carries the sequence relationship between the data packet and other data packets, the receiving end can reorganize the data according to the sequence number corresponding to each data packet, and does not need to wait for the first data packet to be transmitted correctly Afterwards, the communication device of the second wireless communication technology can wait to receive another data packet ( i.e. the second packet). In this case, the transmission of the first data packet and the second data packet is performed simultaneously or sequentially, which can speed up the data transmission rate.

Embodiment three of the present invention

A data packet transmission method is provided, which is mainly used for the transmission of data packets in a network system under the fusion of multiple wireless communication technologies (taking two wireless communication technologies as an example) as shown in Figure 5. In the network system, The communication terminal can transmit data packets through any wireless communication technology, and the communication device can support communication of multiple wireless communication technologies. And the communication device can be a base station of any of the following standards: LTE standard, UMTS standard and GSM standard, etc., the base station can support WLAN network communication, that is, the base station has the function of a wireless AP; or the communication device is a wireless AP in the WLAN network, the The wireless AP can support communication of any of the following standards: LTE standard, UMTS standard and GSM standard, etc. That is, the wireless AP has the function of a base station.

The method of this embodiment is a method executed when a data packet passes through a communication device during the process of transmitting data packets between communication terminals (including the following sending end and receiving end) using the first wireless communication technology, and the flow chart is shown in the figure 6, including:

Step 301, a communication device receives a first data packet sent by a sender.

Step 302, determine whether the transmission of the first data packet received in step 301 through the first wireless communication technology satisfies a preset policy, if yes, execute step 303, if not, execute step 304.

The preset strategy here may include, but is not limited to, any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, in this case, when the communication device receives the first data sent by the sender After the package, the first data packet is transmitted to the receiving end through the first wireless communication technology, if the confirmation message returned by the receiving end is not received, the transmission of the first data packet is wrong; the communication device transmits the first data packet through the first wireless communication technology The load of the transmitted data exceeds a preset load value; the transmission quality of the data packet of the first wireless communication technology does not meet the transmission quality of the first data packet. Under the latter two strategies, when the communication device receives the first data packet sent by the sender, it does not immediately transmit the first data packet to the receiver, but first judges that the first data packet is currently being transmitted by the first wireless communication technology Whether the load exceeds a certain load value, or whether the transmission quality of the data packet meets the transmission quality of the first data packet.

Step 303, transmit the first data packet to the receiving end through the second wireless communication technology.

In order not to waste the transmission resources between the two communication devices, before performing this step, the communication device may first determine whether the second wireless communication technology is available to transmit the first data packet, and if available, this step will be performed. Specifically, the communication device can determine whether the function of transmitting data through the second wireless communication technology in the communication device is normal, for example, whether the buffered data packets on the interface transmitted by the second wireless communication technology exceed a preset value, if not , it means that the first data packet can be transmitted by the second wireless communication technology.

Step 304, the communication device transmits the first data packet to the receiving end through the first wireless communication technology.

It can be seen that, in the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through a communication device supporting multiple wireless communication technologies, if the first wireless communication technology is used to When the transmission of the first data packet satisfies the preset strategy, the communication device will transmit the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is transmitted through another wireless communication technology, which makes full use of network resources and ensures the transmission of the data packet.

In a specific embodiment, after the communication device performs the above step 303, when the receiving end receives the first data packet, it can return an acknowledgment message for the first data packet, and the communication device needs to wait for the receiving end to receive the first data packet. The next data packet (that is, the second data packet) sent by the sending end will not be transmitted until the confirmation message for the first data packet is returned. Specifically, the second data packet can be transmitted according to the above steps 301 to 304, that is, The second data packet is transmitted to the receiving end through the first wireless communication technology or the second wireless communication technology. If the communication device does not receive the confirmation message returned by the receiving end, the communication device may retransmit the first data packet through the second wireless communication technology until the transmission of the first data packet is correct. In this case, when transmitting data packets, it is necessary to confirm that a data packet is correctly transmitted before transmitting the next data packet.

As shown in FIG. 7, in another specific embodiment, after the communication device performs the above step 301, it also needs to perform step 305, that is, after the communication device receives the first data packet sent by the sender, the first data packet is A sequence number is added to the packet, where the sequence number is used to identify the sequence relationship between the first data packet and other data packets. Then, when the communication device executes step 303, it transmits the first data packet with the sequence number increased to the receiving end through the second wireless communication technology. Wherein when adding the sequence number for the first data packet, the communication device can form the first data packet after the sequence number is added after associating the first data packet with the sequence number; or first segment the first data packet, and in the first data packet Add a sequence number to a subsection.

In this way, since each data packet transmitted to the receiving end carries the sequence relationship between the data packet and other data packets, the sending end can transmit the data packets out of order, and the receiving end can reassemble according to the sequence number corresponding to each data packet correct sequence of data packets, after performing the above step 303, the communication device may transmit another data packet without waiting for the first data packet to be transmitted correctly, that is, the communication device does not need to wait for the confirmation message for the first data packet to be received. The data packet (i.e. the second data packet), the transmission of the second data packet can be transmitted according to steps 301 to 305 in Figure 7, and the transmission of the first data packet and the second data packet can be carried out simultaneously or in sequence, Accelerate data transfer rate.

It should be noted that there is no absolute sequence relationship between steps 302 and 305 in this embodiment, and they can be executed simultaneously or sequentially. The execution of step 305 before step 302 shown in FIG. 7 is only one of the specific methods. In an embodiment, in this way, if it is determined in step 302 that the transmission of the first data packet through the first wireless communication technology does not meet the preset policy, the communication device may transmit the first data packet with the increased sequence number through the The first wireless communication technology is transmitted to the receiving end.

It should be noted that the communication devices of the first wireless communication technology and the second wireless communication technology described in Embodiments 1 to 3 above do not represent a sequential relationship, but are used to illustrate different communication devices, and the first data packet and In some cases, the second data packet can not only represent different data packets but also represent a sequence relationship, that is, when it is necessary to wait for the first data packet to be transmitted correctly before transmitting the second data packet, the second data packet can be the first The next packet of a packet.

In the following embodiments four to six, specific examples are used to illustrate the data packet transmission method of the embodiment of the present invention. In embodiments four and five, the communication equipment of the first wireless communication technology is a base station of any standard, and the second wireless communication technology The communication device is a wireless AP; and in the sixth embodiment, the communication device is a base station of any standard that integrates the wireless AP function, specifically:

The data packet transmission method provided by Embodiment 4 of the present invention is shown in FIG. 8. The preset strategy in this embodiment includes the transmission error of the first data packet by the base station, including:

Step 401, transmit data packets in order between the sending end and the receiving end, when the first data packet reaches the radio link control (Radio Link Control, RLC) layer of the base station, and the format of the first data packet is an RLC protocol data unit (Protocol Data Unit, PDU), the RLC layer of the base station transmits the first data packet to the physical layer through Media Access Control (MAC), and then the physical layer of the base station transmits the first data packet from the air interface to the receiver end.

In step 402, if the base station determines that the transmission of the first data packet by the base station is correct, that is, the acknowledgment message for the first data packet returned by the receiving end is received, the base station continues to transmit the next data packet according to step 401, that is, the second data packet. If it is determined that the transmission of the first data packet by the base station is wrong, step 403 is performed.

In step 403, the base station may first determine whether a wireless AP can be used to transmit the first data packet. Specifically, it may determine whether there is a wireless AP with a communication interface with the base station, or determine whether there is a wireless AP with a communication interface with the base station. Whether the cached data exceeds the preset value, if there is a wireless AP whose cached data does not exceed the preset value, the wireless AP can be used to transmit the first data packet, and the base station will forward the first data packet to the wireless AP.

Step 404, after receiving the first data packet, the wireless AP transmits it to the receiving end through the air interface.

Step 405, after the RLC layer of the receiving end receives the first data packet, if the received first data packet is correct, an acknowledgment message for the first data packet is returned to the base station through the wireless AP, and the base station initiates the next data packet, namely Transmission of the second data packet; if the received first data packet is wrong, the above confirmation message will not be replied.

Step 406, if the wireless AP does not receive the above-mentioned confirmation message, it is considered that the transmission of the first data packet is wrong, and the wireless AP can retransmit the first data packet to the receiving end until the receiving end receives the correct first data packet .

In a specific embodiment, if the retransmission of the first data packet by the wireless AP reaches a preset value such as 12 times, the wireless AP will notify the base station to initiate retransmission of the first data packet, as shown by the dotted arrow in FIG. 8 refers to.

The data packet transmission method provided by Embodiment 5 of the present invention is shown in FIG. 9. The preset strategy in this embodiment includes the transmission error of the first data packet by the base station, including:

Step 501, transmit data packets in order between the sending end and the receiving end, when the first data packet reaches the RLC layer of the base station, and the format of the first data packet is RLC PDU, the RLC layer of the base station can add serial number, and transmit the first data packet with the increased serial number to the physical layer through the MAC, and then the physical layer of the base station transmits the first data packet with the increased serial number to the receiving end from the air interface.

Wherein, when the base station increases the serial number for the first data packet, it can directly associate the serial number with the first data packet to form the first data packet after the serial number is added; or first divide the first data packet into multiple sub-segment data, and Add a sequence number in a sub-segment, such as adding the sequence number to the header of the RCL PDU.

In step 502, the base station does not need to determine whether the transmission of the first data packet after the sequence number is increased by the base station is correct, that is, it does not need to wait for the acknowledgment message of the first data packet returned by the receiving end, and can continue to transmit the next data packet according to step 501 The data packet, that is, the second data packet. And when the base station determines that the transmission of the first data packet by the base station is wrong, step 503 needs to be executed.

Step 503, the base station can first determine whether a wireless AP can be used to transmit the first data packet, if a certain wireless AP can be used to transmit the first data packet, the base station will forward the first data packet with the sequence number added to the wireless AP; The AP receives the first data packet with the increased sequence number, and transmits it to the receiving end through the air interface.

Step 504, after the RLC layer of the receiving end receives the first data packet after the sequence number is increased, if the received first data packet is correct, an acknowledgment message for the first data packet is returned to the base station through the wireless AP; If a data packet is wrong, the above confirmation message will not be replied.

Step 505, if the wireless AP does not receive the above-mentioned confirmation message, it is considered that the transmission of the first data packet is wrong, and the wireless AP can retransmit the first data packet with the sequence number increased to the receiving end until the receiving end receives the correct first packet.

In a specific embodiment, if the retransmission of the first data packet by the wireless AP reaches a preset value such as 12 times, the wireless AP will notify the base station to initiate retransmission of the first data packet, as shown by the dotted arrow in FIG. 9 refers to.

Step 506, after receiving multiple data packets with sequence numbers, the receiving end may sort these data packets according to the sequence numbers in the data packets.

It should be noted that in this embodiment, the RLC layer of the base station adds a serial number to the first data packet. In other embodiments, the MAC layer or the physical layer of the base station can add a serial number to the first data packet, which is not performed here. repeat.

The data packet transmission method provided by Embodiment 6 of the present invention is shown in FIG. 10. The preset strategy in this embodiment includes the transmission error of the first data packet by the base station, including:

Step 601, transmit data packets in order between the sending end and the receiving end. When the first data packet reaches the base station, the format of the first data packet is RLC PDU, and the RLC layer of any standard communication module in the base station sends the first data packet The packet MAC is transmitted to the physical layer, and then the physical layer of the base station transmits the first data packet from the air interface to the receiving end. Any standard communication module in the base station transmits the first data packet to the receiving end through the first wireless communication technology.

In step 602, if the base station determines that the transmission of the first data packet through the first wireless communication technology is correct, that is, the confirmation message for the first data packet returned by the receiving end is received, the base station can continue to transmit the next data packet according to step 601, that is, Second data packet. If it is determined that the transmission of the first data packet by the base station through the first wireless communication technology is wrong, step 403 is performed.

Step 603, the wireless AP communication module in the base station transmits the first data packet to the receiving end through the air interface, that is, transmits the first data packet through the second wireless communication technology.

Step 604: After the RLC layer at the receiving end receives the first data packet, if the received first data packet is correct, it returns an acknowledgment message for the first data packet to the base station, and the base station initiates the next data packet, that is, the second data packet. Packet transmission; if the first data packet received is wrong, the above confirmation message will not be replied.

Step 605, if the base station does not receive the above-mentioned confirmation message, it considers that the transmission of the first data packet is wrong, and the wireless AP communication module of the base station can retransmit the first data packet to the receiving end until the receiving end receives the correct first data packet. a packet.

Embodiment 1 of the device of the present invention

Provide a communication device that can support the first wireless communication technology, and each unit in the communication device of this embodiment can perform data packet transmission according to the method described in Embodiment 1. The schematic diagram of the structure is shown in Figure 11. include:

A data packet receiving unit 10, configured to receive the first data packet sent by the sending end;

The transmission determining unit 11 is configured to determine whether the transmission of the first data packet received by the data packet receiving unit 10 satisfies a preset strategy; the preset strategy includes but is not limited to any one or more of the following information: The transmission error of the first data packet by the first wireless communication technology, the load of the communication device exceeds a preset load value, and the transmission quality of the data packet of the first wireless communication technology does not meet the requirements of the first data packet transmission quality;

A transmission forwarding unit 12, configured to forward the first data packet to a communication device of the second wireless communication technology when the transmission determining unit 11 determines that the transmission of the first data packet satisfies a preset policy, so as to instructing the communication device of the second wireless communication technology to transmit the first data packet to the receiving end. And when the transmission of the first data packet does not meet the preset policy, the transmission and forwarding unit 12 may directly transmit the first data packet to the receiving end.

In the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through the communication device of this embodiment, if the transmission determining unit 11 determines that the data packet receiving unit 10 receives When the transmission of the first data packet satisfies the preset strategy, the transmission and forwarding unit 12 will forward the first data packet to the communication device of the second wireless communication technology to indicate that the first data packet is transmitted to the communication device of the second wireless communication technology. Receiving end. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

Referring to FIG. 12, in a specific embodiment, in addition to the structure shown in FIG. 11, the communication device may also include: a confirmation message receiving unit 13, a pre-forwarding judging unit 14, and a sequence number increasing unit 15, in:

An acknowledgment message receiving unit 13, configured to receive an acknowledgment message for the first data packet returned by the receiving end through the communication device of the second wireless communication technology.

The sequence number adding unit 15 is configured to add a sequence number to the first data packet received by the data packet receiving unit 10, the sequence number is used to identify the sequence relationship between the first data packet and other data packets, specifically, the sequence number The adding unit 15 may associate the first data packet with the sequence number to form the first data packet with the sequence number added; or, segment the first data packet, and divide the first data packet Add the serial number in the paragraph.

The pre-forwarding judging unit 14 is configured to judge whether the communication device of the second wireless communication technology is available, and if available, notify the transmission and forwarding unit 12 to perform the forwarding step; or, for judging the same as in this embodiment Whether the data packets buffered by the communication device of the second wireless communication technology associated with the communication device exceed a preset value, if not, notify the transmission and forwarding unit 12 to perform the forwarding step.

In the communication device of this embodiment, the data packet receiving unit 10 will continuously receive the data packets sent by the sending end, including the first data packet and the second data packet. After the data packet is transmitted to the receiving end, if the receiving end correctly receives the first data packet, then return an acknowledgment message to the first data packet; after waiting for the acknowledgment message receiving unit 13 to receive the acknowledgment message to the first data packet, the transmission forwarding unit 12 will transmit the second data packet received by the data packet receiving unit 10 to the receiving end, or the transmission forwarding unit 12 can transmit the second data packet to the receiving end through the communication device of the second wireless communication technology If the confirmation message receiving unit 13 does not receive the confirmation message, the transmission determination unit 11 and the transmission forwarding unit 12 can initiate retransmission of the first data packet, and the second data will not be transmitted until the first data packet is transmitted correctly Bag. It can be seen that, in the communication device in the embodiment of the present invention, when transmitting data packets, the next data packet will be transmitted only after one data packet is transmitted correctly.

In another specific embodiment, after the data packet receiving unit 10 receives the first data packet, the sequence number increasing unit 15 may increase the sequence number for the first data packet, if the transmission determining unit 11 determines that the transmission of the first data packet When the preset strategy is satisfied, the judging unit 12 before forwarding can judge whether the first data packet can be transmitted by the second wireless communication technology, and if so, notify the transmission forwarding unit 12 to increase the sequence number by the sequence number increasing unit 15 after the sequence number The first data packet is forwarded to the communication device of the second wireless communication technology, so as to instruct the communication device of the second wireless communication technology to transmit the first data packet with the sequence number incremented to the receiving end. In this way, since the data packets transmitted to the receiving end have corresponding serial numbers, the receiving end can sort the data packets according to the serial numbers, so that in the process of data packet transmission, there is no need to consider that one data packet is transmitted correctly before another data is transmitted. Therefore, the transmission determination unit 11 and the transmission forwarding unit 12 can initiate the transmission of the second data packet without waiting for the confirmation message receiving unit 13 to receive the confirmation message for the first data packet, and the transmission of the second data packet Before transmission, the sequence number adding unit 15 is also required to add a corresponding sequence number for the second data packet.

Embodiment 2 of the device of the present invention

Provide a communication device that can support the first wireless communication technology, and each unit in the communication device of this embodiment can perform data packet transmission according to the method described in Embodiment 1. The schematic diagram of the structure is shown in Figure 13. Comprising: a memory 20, a processor 21, an input device 23 and an output device 24 respectively connected to the bus, wherein:

The memory 20 is used to store the data input from the input device 23, and can also store information such as necessary files for processing the data by the processor 21; the input device 23 and the output device 24 are ports for the communication device to communicate with other devices.

The processor 21 in this embodiment is used to determine whether the transmission of the first data packet received by the input device 23 from the sending end satisfies a preset policy, and if so, controls the output device 24 to transmit the first data packet Forwarding to the communication equipment of the second wireless communication technology, to instruct the communication equipment of the second wireless communication technology to transmit the first data packet to the receiving end; if not satisfied, the output device 24 can be controlled to directly transmit The first data packet is transmitted to the receiving end. The preset policy includes but is not limited to any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, the load of the communication device exceeds a preset load value, the first The data packet transmission quality of a wireless communication technology does not meet the transmission quality of the first data packet. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

Further, in the communication device of this embodiment, the input device 23 will continuously receive the data packets sent by the sender, including the first data packet and the second data packet, when the processor 21 controls the output device 24 to transmit the first data packet After sending to the receiving end, if the receiving end correctly receives the first data packet, then return an acknowledgment message to the first data packet; wait for the input device 23 to receive the information returned by the receiving end through the communication equipment of the second wireless communication technology After the confirmation message of the first data packet, the processor 21 will control the output device 24 to transmit the second data packet to the receiving end, or control the output device 24 to transmit the second data packet through the second wireless communication technology If the input device 23 does not receive the confirmation message, the processor 21 can control the output device 24 to initiate retransmission of the first data packet, and the first data packet will not be transmitted until the first data packet is transmitted correctly. Two packets. It can be seen that, in the communication device in the embodiment of the present invention, when transmitting data packets, the next data packet will be transmitted only after one data packet is transmitted correctly.

In another specific embodiment, after the input device 23 receives the first data packet, the processor 21 may also add a sequence number to the first data packet, if the processor 21 determines that the transmission of the first data packet satisfies the preset When using the strategy, it may first be judged whether the first data packet can be transmitted by the second wireless communication technology, and if yes, the control output device 24 will be notified to forward the first data packet after the sequence number is increased to the second wireless communication technology. The communication device is configured to instruct the communication device of the second wireless communication technology to transmit the first data packet with the sequence number incremented to the receiving end. In this way, without waiting for the input device 23 to receive an acknowledgment message for the first data packet, the processor 21 can control the output device 24 to initiate the transmission of the second data packet, and the output device 24 also transmits the second data packet before the transmission of the second data packet. The processor 21 is required to add a corresponding sequence number for the second data packet.

Wherein, when the processor 21 increases the sequence number for the first data packet, specifically, the first data packet may be associated with the sequence number to form the first data packet with the sequence number added, or the first data packet may be segmented , and add the sequence number in a sub-segment of the first data packet; the sequence number added here is used to identify the sequence relationship between the first data packet and other data packets. And when the processor 21 judges whether the second wireless communication technology can be used to transmit the first data packet, it can specifically judge whether the communication equipment of the second wireless communication technology is available, and if it is available, it will control the output device 24 to perform the forwarding step or, the processor 21 can judge whether the data packet buffered by the communication device of the second wireless communication technology associated with the communication device of this embodiment exceeds a preset value, and if not, it will control the output device 24 to perform the forwarding A step of.

Embodiment three of the device of the present invention

Provide a communication device that can support the second wireless communication technology, and each unit in the communication device of this embodiment can transmit data packets according to the method described in Embodiment 2. The schematic diagram of the structure is shown in Figure 14. include:

The forwarding and receiving unit 30 is configured to receive the first data packet transmitted by the sending end sent by the communication device of the first wireless communication technology; the first data packet is determined by the communication device of the first wireless communication technology to the first It is sent when the transmission of the data packet meets the preset strategy;

a transmission unit 31, configured to transmit the first data packet received by the forwarding and receiving unit 30 to a receiving end;

The preset strategy includes any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, and the load of the communication device of the first wireless communication technology exceeds a preset load value , the data packet transmission quality of the first wireless communication technology does not meet the transmission quality of the first data packet.

In the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, the forwarding and receiving unit 30 in the communication device of this embodiment will receive the first data packet sent by the communication device of the first wireless communication technology , the first data packet is sent when the communication device of the first wireless communication technology determines that the transmission of the first data packet satisfies a preset policy, so that the transmission unit 31 will transmit the first data packet to the receiving end. In this way, when the first data packet cannot be transmitted by one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

Referring to FIG. 15, in a specific embodiment, in addition to the structure described in FIG. 14, the communication device may also include an acknowledgment forwarding unit 32, a retransmission unit 33, and a retransmission notification unit 34, wherein:

The acknowledgment forwarding unit 32 is configured to send the acknowledgment message for the first data packet returned by the receiving end to the communication device of the first wireless communication technology.

The retransmission unit 33 is configured to retransmit the first data packet to the sending end if the sending end does not return an acknowledgment message for the first data packet.

A retransmission notification unit 34, configured to notify the communication device of the first wireless communication technology to initiate the first data packet if the number of times the retransmission unit 33 retransmits the first data packet exceeds a preset value retransmission.

In the communication device of the embodiment of the present invention, after the transmission unit 31 transmits the first data packet, if it is confirmed that the forwarding unit 32 receives the confirmation message of the first data packet returned by the receiving end, the forwarding and receiving unit 30 waits to receive The second data packet of the sending end sent by the communication device of the first wireless communication technology; if the confirmation forwarding unit 32 does not receive the confirmation message, the retransmission unit 33 can retransmit the first data packet, and if the retransmission After the number of retransmissions of the first data packet by the unit 33 reaches a certain value, the retransmission notification unit 34 will notify the communication device of the first wireless communication technology to send the retransmission of the first data packet.

In another specific embodiment, in order to make the transmission of the data packet do not need to wait for the transmission of one data packet to be correct before transmitting another data packet, the forwarding and receiving unit 30 can receive the communication of the first wireless communication technology The first data packet sent by the device after the sequence number is increased, and the sequence number is used to identify the sequence relationship between the first data packet and other data packets; and the first data packet after the sequence number is increased by the transmission unit 31 The data packets are transmitted to the receiving end, and the receiving end can sort the data packets according to the serial numbers corresponding to the correctly received data packets. In this case, the forwarding and receiving unit 30 may receive the second data packet without waiting for the confirmation message confirming that the forwarding unit 32 returns the first data packet.

Embodiment 4 of the device of the present invention

Provide a communication device that can support the second wireless communication technology, and each unit in the communication device in this embodiment can perform data packet transmission according to the method described in Embodiment 2. The communication device in this embodiment The structure is similar to that of the communication device shown in FIG. 13 above, including a memory, a processor, an input device, and an output device respectively connected to the bus, wherein:

The memory is used to store the data input from the input device, and can also store information such as the necessary files for the processor to process the data; the input device and the output device are ports for the communication device to communicate with other devices.

The processor 41 in this embodiment is configured to, when the input device receives the first data packet transmitted by the sender sent by the communication device of the first wireless communication technology, the first data packet is the first data packet of the first wireless communication technology sent when the communication device determines that the transmission of the first data packet satisfies a preset strategy; the control output device transmits the first data packet to the receiving end; wherein the preset strategy includes any one or more of the following information : The transmission error of the first data packet by the first wireless communication technology, the load of the communication device of the first wireless communication technology exceeds a preset load value, and the transmission quality of the data packet of the first wireless communication technology is not good The transmission quality of the first data packet is satisfied. In this way, when the first data packet cannot be transmitted by one wireless communication technology, the first data packet is forwarded to a communication device of another wireless communication technology for transmission, which fully utilizes network resources and ensures the transmission of the data packet.

Further, after the output device transmits the first data packet, if the input device receives the acknowledgment message of the first data packet returned by the receiving end and sends it to the communication device of the first wireless communication technology by the output device , the input device waits to receive the second data packet of the sending end sent by the communication device of the first wireless communication technology; if the input device does not receive the confirmation message, the processor may control the output device to retransmit the first data packet, And if the number of retransmissions of the first data packet by the output device reaches a certain value, the processor may notify the communication device of the first wireless communication technology to retransmit the first data packet.

In another specific embodiment, in order to make the transmission of the data packet do not need to wait for the transmission of one data packet to be correct before transmitting another data packet, the input device can receive the data sent by the communication device of the first wireless communication technology. The first data packet after increasing the sequence number, the sequence number is used to identify the sequence relationship between the first data packet and other data packets; and the processor will control the output device to increase the first data packet after the sequence number The data packets are transmitted to the receiving end, and the receiving end can sort the data packets according to the serial numbers corresponding to the correctly received data packets. In this case, the input device may receive the second data packet without waiting for the output device to return an acknowledgment message of the first data packet to the communication device of the first wireless communication technology.

Embodiment five of the device of the present invention

Provide a communication device that can support the first wireless communication technology and the second wireless communication technology, and each unit in the communication device of this embodiment can perform data packet transmission according to the method described in Embodiment 3, a schematic structural diagram As shown in Figure 16, including:

The sending and receiving unit 40 is configured to receive the first data packet sent by the sending end.

A policy determining unit 41, configured to determine whether the transmission of the first data packet received by the transmitting and receiving unit 40 through the first wireless communication technology satisfies a preset policy; the preset policy includes any one or more of the following information : The transmission error of the first data packet through the first wireless communication technology, the data transmission load of the communication device through the first wireless communication technology exceeds the preset load value, and the data packet transmission of the first wireless communication technology The quality does not meet the transmission quality of the first data packet;

The data transmission unit 42 is configured to transmit the first data packet through the second wireless communication when the policy determination unit 41 determines that the transmission of the first data packet through the first wireless communication technology satisfies a preset policy. technology to the receiving end; if not satisfied, the data transmission unit 42 may also transmit the first data packet to the receiving end through the first wireless communication technology.

It can be seen that, in the embodiment of the present invention, during the process of transmitting the first data packet between the sending end and the receiving end, when the first data packet passes through a communication device supporting multiple wireless communication technologies, if the policy determining unit 41 determines that the first data packet is passed When the transmission of the first data packet by a wireless communication technology satisfies a preset strategy, the data transmission unit 42 transmits the first data packet to the receiving end through the second wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is transmitted through another wireless communication technology, which makes full use of network resources and ensures the transmission of the data packet.

Referring to FIG. 17, in a specific embodiment, in addition to the structure shown in FIG. 16, the communication device of the embodiment of the present invention may also include: an acknowledgment message receiving unit 43 and a serial number increasing unit 44, wherein:

An acknowledgment message receiving unit 43, configured to receive an acknowledgment message for the first data packet returned by the receiving end.

A sequence number adding unit 44, configured to add a sequence number to the first data packet received by the sending and receiving unit, the sequence number is used to identify the sequence relationship between the first data packet and other data packets, specifically, the sequence number adding unit 44. After associating the first data packet with the sequence number to form a first data packet with an increased sequence number; or, segment the first data packet and place it in a certain sub-segment of the first data packet Add the sequence number.

In the communication device of this embodiment, the sending and receiving unit 40 will continuously receive the data packets sent by the sending end, including the first data packet and the second data packet. After the packet is transmitted to the receiving end, if the receiving end correctly receives the first data packet, then return an acknowledgment message to the first data packet; after waiting for the acknowledgment message receiving unit 43 to receive the acknowledgment message to the first data packet, the data transmission unit 42 The second data packet received by the sending and receiving unit 40 will be transmitted to the receiving end through the first wireless communication technology or the second wireless communication; if the confirmation message receiving unit 43 does not receive the confirmation message, the policy determination unit 41 and the data The transmission unit 42 may initiate retransmission of the first data packet, and will not transmit the second data packet until the transmission of the first data packet is correct. It can be seen that, in the communication device in the embodiment of the present invention, when transmitting data packets, the next data packet will be transmitted only after one data packet is transmitted correctly.

In another specific embodiment, after the sending and receiving unit 40 receives the first data packet, the sequence number adding unit 44 may add a sequence number to the first data packet, if the policy determination unit 41 determines that the transmission of the first data packet meets When a preset strategy is used, the data transmission unit 42 transmits the first data packet after the sequence number is increased by the sequence number increasing unit 44 to the receiving end through the first wireless communication technology or the second wireless communication technology. In this way, since the data packets transmitted to the receiving end have corresponding serial numbers, the receiving end can sort the data packets according to the serial numbers, so that in the process of data packet transmission, there is no need to consider that one data packet is transmitted correctly before another data is transmitted. Therefore, the policy determination unit 41 and the data transmission unit 42 can initiate the transmission of the second data packet without waiting for the confirmation message receiving unit 43 to receive the confirmation message for the first data packet, and the transmission of the second data packet Before transmission, the sequence number adding unit 44 is also required to add a corresponding sequence number for the second data packet.

Embodiment six of the device of the present invention

Provide a communication device that can support the second wireless communication technology and the first wireless communication technology, and each unit in the communication device of this embodiment can perform data packet transmission according to the method described in Embodiment 3. This embodiment The structure of the communication device in the example is similar to the structure of the communication device shown in FIG. 13 above, including a memory, a processor, an input device and an output device respectively connected to the bus, wherein:

The memory is used to store the data input from the input device, and can also store information such as the necessary files for the processor to process the data; the input device and the output device are ports for the communication device to communicate with other devices.

The processor of this embodiment is used to determine whether the transmission of the first data packet through the first wireless communication technology satisfies a preset strategy after the input device receives the first data packet sent by the sender; the preset strategy includes Any one or more of the following information: the transmission error of the first data packet through the first wireless communication technology, the data transmission load of the communication device through the first wireless communication technology exceeds a preset load value, the first The data packet transmission quality of the wireless communication technology does not meet the transmission quality of the first data packet; if it is satisfied, the output device can be controlled to transmit the first data packet to the receiving end through the second wireless communication technology; if it is not satisfied, it can be The output device is controlled to transmit the first data packet to the receiving end through the first wireless communication technology. In this way, when the first data packet cannot be transmitted through one wireless communication technology, the first data packet is transmitted through another wireless communication technology, which makes full use of network resources and ensures the transmission of the data packet.

Further, the input device will continuously receive the data packets sent by the sending end, including the first data packet and the second data packet. After the processor controls the output device to transmit the first data packet to the receiving end, if the receiving end correctly receives The first data packet, then return the acknowledgment message to the first data packet; After waiting for the input device to receive the acknowledgment message to the first data packet returned by receiving, the processor will control the output device to receive the second data packet received by the input device Transmit to the receiving end through the first wireless communication technology or the second wireless communication; if the input device does not receive the confirmation message, the processor can control the output device to initiate retransmission of the first data packet until the first data packet is transmitted correctly , the second packet will be transmitted. It can be seen that, in the communication device in the embodiment of the present invention, when transmitting data packets, the next data packet will be transmitted only after one data packet is transmitted correctly.

In another specific embodiment, after the input device receives the first data packet, the processor is further configured to add a sequence number to the first data packet, if the processor determines that the transmission of the first data packet satisfies a preset strategy , the output device will be controlled to transmit the first data packet after adding the sequence number to the receiving end through the first wireless communication technology or the second wireless communication technology. In this way, since the data packets transmitted to the receiving end have corresponding serial numbers, the receiving end can sort the data packets according to the serial numbers, so that in the process of data packet transmission, there is no need to consider that one data packet is transmitted correctly before another data is transmitted. packet, so the processor can initiate the transmission of the second data packet without waiting for the input device to receive an acknowledgment message for the first data packet, and the processor also needs to provide the second data packet before the transmission of the second data packet The package increments the corresponding serial number.

In this embodiment, when adding a serial number to the first data packet, the processor may associate the first data packet with the serial number to form the first data packet with the added serial number; or divide the first data packet into segment, and add the sequence number in a certain sub-segment of the first data packet, where the sequence number is used to identify the sequence relationship between the first data packet and other data packets.

The embodiment of the present invention also provides a data packet transmission system, the structure of which can be specifically shown in Figure 1, including a communication device of the first wireless communication technology and a communication device of the second wireless communication technology; wherein the communication device of the first wireless communication technology The device may be the communication device described in Embodiment 1 of the device of the present invention, and the communication device of the second wireless communication technology may be the communication device described in Embodiment 3 of the device of the present invention, which will not be repeated here.

The embodiment of the present invention also provides a data packet transmission system, the structure of which can be specifically shown in Figure 1, including a communication device of the first wireless communication technology and a communication device of the second wireless communication technology; wherein the communication device of the first wireless communication technology The device may be the communication device described in Embodiment 2 of the device of the present invention, and the communication device of the second wireless communication technology may be the communication device described in Embodiment 4 of the device of the present invention, which will not be repeated here.

The embodiment of the present invention also provides a data packet transmission system, the specific structure of which can be shown in Figure 5, including the communication device supporting multiple wireless communication technologies as described in the fifth or sixth device embodiment of the present invention, which is not described here to repeat.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read Only Memory (ROM), Random Access Memory (RAM), Magnetic or Optical Disk, etc.

The data packet transmission method, system and communication equipment provided by the embodiments of the present invention have been described above in detail. In this paper, specific examples are used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only used to help understanding The method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as a limitation of the invention.

Claims (31)

1. a data pack transmission method, is characterized in that, is applied to the communication equipment of the first wireless communication technology, comprising:

The first packet that receiving end/sending end sends;

Determine whether the transmission for described the first packet meets preset strategy, if, described the first package forward is given to the communication equipment of the second wireless communication technology, with the communication equipment of indicating described the second wireless communication technology by described the first data packet transmission to receiving terminal;

Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, the load of the communication equipment of described the first wireless communication technology surpasses preset load value, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet.

2. the method for claim 1, is characterized in that, described by described the first package forward, give the communication equipment of the second wireless communication technology after, also comprise:

Wait receives that the communication equipment of described receiving terminal by described the second wireless communication technology return, after acknowledge message for described the first packet, the second data packet transmission that transmitting terminal is sent is to receiving terminal, or the communication equipment by described the second wireless communication technology is transferred to receiving terminal by described the second packet.

3. the method for claim 1, is characterized in that, after the first packet sending at described receiving end/sending end, and described by described the first package forward, give the communication equipment of the second wireless communication technology before, also comprise:

For described the first packet increases sequence number, described sequence number is for identifying the ordinal relation between described the first packet and other packet;

Describedly specifically comprise described the first package forward to the communication equipment of the second wireless communication technology: will increase the first package forward after described sequence number communication equipment to described the second wireless communication technology, with the communication equipment of indicating described the second wireless communication technology by the first data packet transmission that increases described sequence number to described receiving terminal.

4. method as claimed in claim 3, is characterized in that, described is that described the first packet increases sequence number, specifically comprises:

By described the first packet afterwards form first packet of increasing sequence number after associated with described sequence number; Or,

By described the first packet segmentation, and add described sequence number in a certain sub-segmentation of the first packet.

5. the method as described in claim 1 to 4 any one, is characterized in that, described by described the first package forward, give the communication equipment of the second wireless communication technology before, also comprise:

Whether the communication equipment that judges described the second wireless communication technology is available, if available, carries out the step of described forwarding; And/or,

Whether the packet that judges the communication equipment buffer memory of second wireless communication technology associated with the communication equipment of described the first wireless communication technology surpasses preset value, if do not surpassed, carries out the step of described forwarding.

6. the method as described in claim 1 to 5 any one, is characterized in that,

The communication equipment of described the first wireless communication technology is the base station of following arbitrary standard: Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard; The communication equipment of described the second wireless communication technology is the wireless access point AP in WLAN (wireless local area network); Or,

The communication equipment of described the first wireless communication technology is the wireless access point AP in WLAN (wireless local area network), the communication equipment of described the second wireless communication technology is the base station of following arbitrary standard: Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard.

7. a data pack transmission method, is characterized in that, is applied to the communication equipment of the second wireless communication technology, comprising:

Receive the first packet of the transmitting terminal that the communication equipment of the first wireless communication technology sends; Communication equipment that described the first packet is described the first wireless communication technology is determined the transmission of described the first packet is met and preset sent when tactful;

By described the first data packet transmission to receiving terminal;

Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, the load of the communication equipment of described the first wireless communication technology surpasses preset load value, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet.

8. method as claimed in claim 7, is characterized in that, described by described the first data packet transmission to after receiving terminal, also comprise:

The acknowledge message for described the first packet that described receiving terminal is returned sends to after the communication equipment of described the first wireless communication technology, waits for the second packet of the described transmitting terminal of the communication equipment transmission that receives described the first wireless communication technology.

9. method as claimed in claim 7, is characterized in that, the first packet of the transmitting terminal that the communication equipment of described reception the first wireless communication technology sends, specifically comprises:

Receive the first packet after the increase sequence number that the communication equipment of described the first wireless communication technology sends, described sequence number is for identifying the ordinal relation between described the first packet and other packet;

By described the first data packet transmission to receiving terminal, specifically comprise: will increase the first data packet transmission after described sequence number to described receiving terminal.

10. the method as described in claim 7 to 9 any one, is characterized in that, described method also comprises:

If described transmitting terminal does not return to the acknowledge message to described the first packet, again by described the first data packet transmission, give described transmitting terminal;

If when again transmitting the number of times of described the first packet and surpassing preset value, notify the communication equipment of described the first wireless communication technology to initiate the re-transmission of described the first packet.

11. methods as described in claim 7 to 10 any one, is characterized in that,

The communication equipment of described the first wireless communication technology is the base station of following arbitrary standard: Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard; The communication equipment of described the second wireless communication technology is the wireless access point AP in WLAN (wireless local area network); Or,

The communication equipment of described the first wireless communication technology is the wireless access point AP in WLAN (wireless local area network), the communication equipment of described the second wireless communication technology is the base station of following arbitrary standard: Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard.

12. 1 kinds of data pack transmission methods, is characterized in that, are applied to support the communication equipment of the first wireless communication technology and the second wireless communication technology, comprising:

The first packet that receiving end/sending end sends;

Determine, by the first wireless communication technology, whether the transmission of described the first packet is met to preset strategy, if so, described the first packet is transferred to receiving terminal by the second wireless communication technology;

Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, described communication equipment surpasses preset load value by the load of the first wireless communication technology transmission data, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet.

13. methods as claimed in claim 12, is characterized in that, described described the first packet is transferred to receiving terminal by the second wireless communication technology after, also comprise:

After wait receives the acknowledge message for described the first packet that described receiving terminal returns, the second packet that transmitting terminal is sent by the first wireless communication technology or the second wireless communication transmissions to described receiving terminal.

14. methods as described in claim 12 or 13, is characterized in that, after the first packet that described receiving end/sending end sends, also comprise:

For described the first packet increases sequence number, described sequence number is for identifying the ordinal relation between described the first packet and other packet;

Describedly described the first packet is transferred to receiving terminal by the second wireless communication technology specifically comprises: will increase the first data packet transmission after described sequence number to described receiving terminal.

15. methods as claimed in claim 14, is characterized in that, described is that described the first packet increases sequence number, specifically comprises:

By described the first packet afterwards form first packet of increasing sequence number after associated with described sequence number; Or,

By described the first packet segmentation, and add described sequence number in a certain sub-segmentation of the first packet.

16. methods as described in claim 12 to 15 any one, is characterized in that,

Described communication equipment is the base station with following arbitrary standard of the wireless access point AP function in WLAN (wireless local area network): Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard; Or,

Described communication equipment is the wireless access point AP in the WLAN (wireless local area network) of base station functions of arbitrary standard specific as follows: Long Term Evolution LTE standard, wide area mobile communication system UMTS standard and global system for mobile communications GSM standard.

17. 1 kinds of communication equipments, is characterized in that, described communication equipment is supported the first wireless communication technology, comprising:

Packet receiving element, the first packet sending for receiving end/sending end;

Transmission determining unit, for determining whether the transmission of the first packet receiving for described packet receiving element meets preset strategy; Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, the load of described communication equipment surpasses preset load value, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet;

Transmission retransmission unit, preset when tactful for meeting when the definite transmission for described the first packet of described transmission determining unit, described the first package forward is given to the communication equipment of the second wireless communication technology, with the communication equipment of indicating described the second wireless communication technology by described the first data packet transmission to receiving terminal.

18. communication equipments as claimed in claim 17, is characterized in that, also comprise:

Acknowledge message receiving element, the acknowledge message for described the first packet of returning for receiving the communication equipment of described receiving terminal by described the second wireless communication technology;

Described packet receiving element, the second packet also sending for receiving end/sending end;

Described transmission retransmission unit, after waiting for that described acknowledge message receiving element receives the acknowledge message of described the first packet, the second data packet transmission that described packet receiving element is received is to receiving terminal, or the communication equipment by described the second wireless communication technology is transferred to receiving terminal by described the second packet.

19. communication equipments as described in claim 17 or 18, is characterized in that, also comprise:

Sequence number increases unit, is used to the first packet that described packet receiving element receives to increase sequence number, and described sequence number is for identifying the ordinal relation between described the first packet and other packet;

Described transmission retransmission unit, specifically for described sequence number being increased to unit, increase the first package forward after described sequence number to the communication equipment of described the second wireless communication technology, with the communication equipment of indicating described the second wireless communication technology by the first data packet transmission that increases described sequence number to described receiving terminal.

20. communication equipments as claimed in claim 19, is characterized in that, described sequence number increases unit and specifically comprises: for by described the first packet first packet of afterwards forming increase sequence number after associated with described sequence number; Or, by described the first packet segmentation, and add described sequence number in a certain sub-segmentation of the first packet.

21. communication equipments as described in claim 17 to 20 any one, is characterized in that, also comprise:

Judging unit before forwarding, whether available for judging the communication equipment of described the second wireless communication technology, if available, notify described transmission retransmission unit to carry out the step of described forwarding; Or,

Judging unit before described forwarding, for judging that whether the packet of the communication equipment buffer memory of second wireless communication technology associated with described communication equipment surpasses preset value, if do not surpassed, notifies described transmission retransmission unit to carry out the step of described forwarding.

22. 1 kinds of communication equipments, is characterized in that, described communication equipment is supported the second wireless communication technology, comprising:

Forward receiving element, for receiving the first packet of the transmitting terminal that the communication equipment of the first wireless communication technology sends; Communication equipment that described the first packet is described the first wireless communication technology is determined the transmission of described the first packet is met and preset sent when tactful;

Transmission unit, for the first data packet transmission that described forwarding receiving element is received to receiving terminal;

Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, the load of the communication equipment of described the first wireless communication technology surpasses preset load value, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet.

23. communication equipments as claimed in claim 22, is characterized in that, also comprise:

Confirm retransmission unit, for the acknowledge message for described the first packet that described receiving terminal is returned, send to the communication equipment of described the first wireless communication technology;

Described forwarding receiving element, for receiving after the acknowledge message of described the first packet at described confirmation retransmission unit, waits for the second packet of the described transmitting terminal of the communication equipment transmission that receives described the first wireless communication technology.

24. communication equipments as described in claim 22 or 23, is characterized in that,

Described forwarding receiving element, specifically for receiving the first packet after the increase sequence number that the communication equipment of described the first wireless communication technology sends, described sequence number is for identifying the ordinal relation between described the first packet and other packet;

Described transmission unit, specifically for giving described receiving terminal by the first data packet transmission after the described sequence number of increase.

25. communication equipments as described in claim 22 to 24 any one, is characterized in that, also comprise:

Retransmission unit, if do not return to the acknowledge message to described the first packet for described transmitting terminal, gives described transmitting terminal by described the first data packet transmission again;

Retransmit notification unit, if when the number of times that again transmits described the first packet for described retransmission unit surpasses preset value, notify the communication equipment of described the first wireless communication technology to initiate the re-transmission of described the first packet.

26. 1 kinds of communication equipments, is characterized in that, support the first wireless communication technology and the second wireless communication technology, comprising:

Send receiving element, the first packet sending for receiving end/sending end;

Strategy determining unit, for determining whether the transmission of the first packet described transmission receiving element being received by the first wireless communication technology meets preset strategy; Described preset strategy comprises following any one or more information: the error of transmission by the first wireless communication technology to described the first packet, described communication equipment surpasses preset load value by the load of the first wireless communication technology transmission data, and the data packet transmission quality of described the first wireless communication technology does not meet the transmission quality of described the first packet;

Data transmission unit, meets presetly when tactful for determining when described tactful determining unit to the transmission of described the first packet by the first wireless communication technology, described the first packet is transferred to receiving terminal by the second wireless communication technology.

27. communication equipments as claimed in claim 26, is characterized in that, also comprise:

Acknowledge message receiving element, the acknowledge message for described the first packet of returning for receiving described receiving terminal;

Described transmission receiving element, the second packet also sending for receiving described transmitting terminal;

Described data transmission unit, for after waiting for that described acknowledge message receiving element receives the acknowledge message of described the first packet, the second packet that described transmission receiving element is received by the first wireless communication technology or the second wireless communication transmissions to described receiving terminal.

28. communication equipments as described in claim 26 or 27, is characterized in that, also comprise:

Sequence number increases unit, is used to the first packet that described transmission receiving element receives to increase sequence number, and described sequence number is for identifying the ordinal relation between described the first packet and other packet;

Described data transmission unit, specifically for increasing the first data packet transmission after described sequence number to described receiving terminal.

29. communication equipments as claimed in claim 28, is characterized in that, sequence number increases unit, specifically for by described the first packet first packet of afterwards forming increase sequence number after associated with described sequence number; Or, by described the first packet segmentation, and add described sequence number in a certain sub-segmentation of the first packet.

30. 1 kinds of data packet transmission systems, is characterized in that, comprise the communication equipment of the first wireless communication technology and the communication equipment of the second wireless communication technology;

The communication equipment of described the first wireless communication technology is the communication equipment as described in claim 17 to 21 any one, and the communication equipment of described the second wireless communication technology is the communication equipment as described in claim 22 to 25 any one.

31. 1 kinds of data packet transmission systems, is characterized in that, comprise the communication equipment of the support various wireless communication technical communication as described in claim 26 to 29 any one.